Question
Manny has two part-time jobs. She earns $21 per hour (a) working as an aerobics instructor, and $12.50 per hour (d) working at the donut shop. Her earnings are represented by the expression 21a+12.50d . How much money will she earn working 4 hours as an aerobics instructor and 8 hours at the donut shop?(1 point) Responses $134 $134 $218 $218 $33.50 $33.50 $184
Answers
GPT-4o mini
To find out how much Manny will earn working 4 hours as an aerobics instructor and 8 hours at the donut shop, we can use the expression \(21a + 12.50d\), where \(a\) represents the hours worked as an aerobics instructor and \(d\) represents the hours worked at the donut shop.
Given:
- \(a = 4\) (hours as an aerobics instructor)
- \(d = 8\) (hours at the donut shop)
Now, we can calculate her earnings:
\[
Earnings = 21(4) + 12.50(8)
\]
Calculating each part:
1. For the aerobics instructor:
\[
21 \times 4 = 84
\]
2. For the donut shop:
\[
12.50 \times 8 = 100
\]
Now, add the two amounts together:
\[
Earnings = 84 + 100 = 184
\]
Thus, Manny will earn **$184**.
Given:
- \(a = 4\) (hours as an aerobics instructor)
- \(d = 8\) (hours at the donut shop)
Now, we can calculate her earnings:
\[
Earnings = 21(4) + 12.50(8)
\]
Calculating each part:
1. For the aerobics instructor:
\[
21 \times 4 = 84
\]
2. For the donut shop:
\[
12.50 \times 8 = 100
\]
Now, add the two amounts together:
\[
Earnings = 84 + 100 = 184
\]
Thus, Manny will earn **$184**.
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